Roofing



Dec. 11, 1928.

O. A. HEPPES ROOFING Filed Sept. 8, 1923 Patented Dec. 11, 1928.

UNITED STATES PATENT oFFicE.

(mm A. HEPPES, or LA GRANGE, ILLINOIS, ASSIGNORTO Tim rLINTxoTs COMPANY, or BOSTON, MASSACHUSETTS, A CORPORATION or MASSACHUSETTS.

noorme.

Application filed September 8, .1923 Serial No. 661573.

v n l s This invention relates to roofing more particularly of somewhat flexible material such as is commonly madeof fibrous sheet material saturated with waterproofing material, 6 as asphalt, and coated with high melting point asphalt, with 01' without a surfacing of .granular materialsuch as crushed slate. \Vhen such material is laid in superposed overlapping courses any depending tabs or projections exposed to the weatherare liable to become raised from the roof as by wind or accidental curling or warping of the material, impairing the appearance of the roof and if pronounced, its weatherproofing capabilities also. The tabs or projections are also liable when raised to be torn off or otherwise damaged.- This action is particularly liable to occur when comparatively large shingle'units are being used. as for example, when square shingles are laid diagonally on the roof exposing to the weather all but comparatively narrow portions along their upper converging edges.

According to the present invention, there- 25 fore, each shingle is so formed that its depending corner, portion may interlock with the adjacent shingle where the latter is quite directly made fast to the roof.

For a more complete understanding of this invention, reference may be had to the accompanying drawings in which Figure l is "a plan of a shingle formed according to this invention.

Figure 2 is a fragmentary plan of a roof showing the shingles of Figure 1 laid thereon. Figure 3 is a detail illustrating interfitting portions of a pair of adjacent shingles slightly separated.

Referring to these drawings, 1 indicates a shingle element preferably of flexible sheet material of polygonal form, as herein shown it being square. One corner, herein shown as the left hand corner when the shingle is laid diagonally on the roof, is slotted inwardly as at 2. This slot extends inwardly from this corner substantially horizontally so that it bisects the angle formed by the converging upper edge 3 and lower edge 4 of the unit. The other lower edge 5 of this-unit has cut therefrom near its apex with the side 4 a slot 6 substantially parallel with the slot 2 and extending in the opposite direction thereto, this slot being at an angle to the perpendicular to the side 5 and being spaced from the slot 2. The slot 2 may be\ regarded as extending inwardly from the side 4 of the shingle elementadjacent to the Side 5 and also as extending inwardly from the opposite side 3 and at an angle to the perpendicular'to each of these sides. The shingles are laid as shown in Figures 2 and 3, the slot 6 of one shingle interlocking with the slot 2 of the diagonally positioned shingle of an underlying course, I the portion 7 below the slot 6 underlying the portion 8 below the slot 2 and the edgesfi and 5 of the various courses of shingles being respectively in diagonal alinement as more clearly illustrated in Figure 2L When laid the fastening elements, such-as nails, by which the shingles are fixed to the roof, are driven in adjacent to the upper converging edges 3 and 9 where they will be overlaid by the succeeding course, consequently the slots 2 of the shingles are closely adjacent certain of said fastening elements and hence the adjacent shingle portions are securely held down to the roof. The depending corners of the units of the succeeding course are thus interlocked with portions of the previous course closely held to the roof, consequently'they also are held firmly in position so that they can not be raised upwardly from the roof, the shingles interfitting and engaging each other in pairs.

Having thus described an embodiment of this invention it should be evident that various changes andmodifications may be made therein without departing from its spirit or Scope as defined by the appended claims.

I claim:

1. A roofing element comprising a poly onal shaped piece of sheet material having an open-ended slot extending inwardly from the apex of one corner and a slot extending inwardly from one side. i

2. A roofing element comprising a polygonal shaped piece of sheet material having a slot extending inwardly from one corner and a slot extending inwardly from one side, said slots being substantially parallel.

3. A roofing element comprising a polygonal shaped piece of sheet material having a slot extending inwardly from one corner and a'slot extending inwardly from one side,

said slots being substantially parallel and at 105 an angle'to the perpendicular'to said side.

piece y '4. -.A roofing element comprising a square piece ofsheet material having a slot extending inwardly from one corner and a slot extending inwardly from one side at an angle to the perpendicular to said side.

5. A rooting. element comprising square of sheet material having a slot extending inwardly from one corner and a slot extending inwardly from one side adjacent to one corner at an angle to the perpendicular to said side.

6. A roofing element comprising a square piece of sheet material h'avil'ig a slot extending inwardly from one corner and a slot ex; tending inwardly from one side at an angle to the perpendicular to said side, said slots being substantially parallel to each other.

T. A roofing element comprising a square piece of sheet material having a slot extending inwardly from one corner and a slotextending inwardly from one side adjacent to one corner at an angle to the perpendicular to saidside, said slots being substantially parallel to each other.

8. A roofing element comprising a piece of sheet material having oppositely disposed substantially parallel sides, said piece having a pair of open-ended slots extending obliquely inward from difierent sides thereof in opposite parallel directions.

9. A plurality of shingles each having four corners with a slit projecting inwardly from one corner and a second slit projecting inwardly from'a second corner, said shingles being adapted to be laid in rows with their upper and lower edges registering and with said shts IIItQI'lOCklIlQ'.

10. A plurality of shingles each having four corners with a slit projecting inwardly from the point of a corner at one end of the shingle, and a slitprojccting inwardly from a second corner, but spaced from the point of said second corner, said shingles being adapted .to be laid in rows with their abutting edges registerin with said end of each shina I I I gle lapping over an end oi an ad acent shingle, and with the two slits interlocking.

11 A plurality of shingles each having four corners with a slit projecting in-wardl y from one corner and a. second slit projecting inwardly from a second corner, said slits both extending in directions oblique to the sides of the shingles, said shingles being end of an adjacent shingle, and with the two 4 slits interlocking. i

In testimony whereof I have afiixe'd my signature.

- OTTO A. HEPPES. 

